CN102359380B - The main driving mechanism of six arm cutterheads for shield machine - Google Patents
The main driving mechanism of six arm cutterheads for shield machine Download PDFInfo
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- CN102359380B CN102359380B CN201110278858.0A CN201110278858A CN102359380B CN 102359380 B CN102359380 B CN 102359380B CN 201110278858 A CN201110278858 A CN 201110278858A CN 102359380 B CN102359380 B CN 102359380B
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- shield machine
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Abstract
The main driving mechanism of six arm cutterheads for the open shield machine of the present invention, comprise cutter head of shield machine and main driving mechanism, it is characterized in that: main driving mechanism is mainly by synchronous frequency conversion motor (1), geared system (2) and base bearing (3) form, the output of variable-frequency motor (1) is closely connected with the input of geared system (2), the output of geared system (2) is connected with base bearing (3) and drive shaft is held (3) rotation, described base bearing (3) is connected with cutter head of shield machine by the flange (4) connecting, be provided with black box (5) on the top of described base bearing (3), synchronous frequency conversion motor (1) is with brake, and this synchronous frequency conversion motor (1), geared system (2) and base bearing (3) are connected to form detachable type integral structure. the present invention adopts synchronous frequency conversion motor to be used as type of drive, and speed governing can reach moment of torsion in full within the scope of 0～50Hz, has the beneficial effect that starting current is little, efficiency is high, maintenance is simple, noise nuisance is little.
Description
Technical field
The present invention relates to a kind of drive unit of cutterhead, the main driving mechanism of six arm cutterheads for especially a kind of shield machine. Belong toRoad heading machinery field.
Background technology
At present, the cutterhead driving device using on the market adopts fluid pressure drive device conventionally, mainly by hydraulic power unit, valve piece group,The compositions such as pipeline, driving hydraulic motor, decelerator, large pinion, base bearing and seal, fluid motor-driven cutterhead revolvesTurn, cutterhead rotating speed and moment are by hydraulic system charge oil pressure and Flow-rate adjustment, and it is little that this device has volume, are convenient to cutterhead and adjustThe feature such as speed and overload protection. But still there is following some shortcomings part in this device: 1) Hydraulic Elements accuracy of manufacture requirementThe high technical requirement due to element is high and assembling is more difficult, and working service is stricter; 2) fluid is subject to the impact of temperature,Because oil viscosity changes with the change of temperature, therefore should not work under the environment of high temperature or low temperature; 3) owing to adopting oilPipe transmission pressure oil, holds concurrently and unavoidably has leakage, the pressure loss in relative motion surface; 4) the easy shadow of entrained air in fluidRing service behaviour, when after entrained air in fluid, easily cause creep, vibration and noise, the service behaviour of system is subject toImpact; 5) fluid easily pollutes, and after oil contamination, can affect the reliability of system works; 6) break down and be difficult for checkingAnd eliminating. Therefore, need to develop a kind of new drive unit and solve these problems.
Summary of the invention
Object of the present invention, is the problem of polluting machine intimate working environment in order to solve prior art hydraulic fluid leak, providesA kind of maintenance is simple, and noise hazard is little, and greatly improves the main driving of six arm cutterheads for the shield machine of operating platform environmentMechanism.
Object of the present invention can reach by the following technical programs:
The main driving mechanism of six arm cutterheads for shield machine, comprises cutter head of shield machine and main driving mechanism, and its design feature is:
1) main driving mechanism is mainly made up of some synchronous frequency conversion motors, geared system and base bearings, described variable-frequency motorOutput be closely connected with the input of geared system, the output of described geared system is connected with base bearing and drive shaftForward movingly, described base bearing is connected with cutter head of shield machine by adpting flange, is provided with black box on the top of described base bearing;
2) described synchronous frequency conversion motor is with brake, and this synchronous frequency conversion motor, geared system and base bearing are connected to form canDetachable integral structure.
Object of the present invention can also reach by the following technical programs:
A kind of embodiment of the present invention is: the junction at described synchronous frequency conversion motor and geared system is provided with gearbox and coldRadiator cooler; Wherein, the output shaft of variable-frequency motor connects gearbox by cooling device, and the output of gearbox connects gear dressThe spherical bearing of putting.
A kind of embodiment of the present invention is: described synchronous frequency conversion motor can comprise motor body and frequency converter, at described electricityOn the output shaft of machine body, torque speed sensor is installed, between frequency converter and sensor, is connected with industrial computer.
A kind of embodiment of the present invention is: described synchronous frequency conversion motor can be provided with 6～10.
A kind of embodiment of the present invention is: described flange can be arranged on base bearing by bolt.
A kind of embodiment of the present invention is: described main driving mechanism can also include lubrication assembly.
The present invention has following outstanding beneficial effect:
1, the present invention is used as type of drive owing to adopting synchronous frequency conversion electric machine and frequency conversion to cry, and speed governing is at 0～50Hz modelCan reach moment of torsion in full in enclosing, power of motor is constant, therefore has starting current little, the high advantage of efficiency, regulation loop anti-Reflect, safeguard that simply noise nuisance is little, cooling device can be set on motor and improve environment temperature.
2, the use and maintenance of shield machine is convenient in the present invention, and while changing cutter, cutterhead rotates the angle that can stop at any time appointmentDegree, and can change cutterhead rotation direction by changing phase sequence, improve the overall performance of shield machine.
3, the present invention can transform according to the design feature of the characteristic of different cutterheads and variable-frequency motor, thereby improves cutterheadThe safety coefficient of structure.
Brief description of the drawings
Fig. 1 is planar structure schematic diagram of the present invention.
Fig. 2 is the connection diagram of synchronous frequency conversion motor of the present invention, gear and base bearing.
Fig. 3 is the driving principle figure of synchronous frequency conversion motor of the present invention.
Wherein, 1-synchronous frequency conversion motor, 2-geared system, 3-base bearing, 4-adpting flange, 5-black box, 6-gearbox,7-cooling device, 8-spherical bearing.
Detailed description of the invention
Specific embodiment 1:
Fig. 1 and Fig. 2 form specific embodiments of the invention 1.
See figures.1.and.2, the present embodiment comprises cutter head of shield machine and main driving mechanism, and main driving mechanism is mainly by someSynchronous frequency conversion motor 1, geared system 2 and base bearing 3 form, the output of described variable-frequency motor 1 and geared system 2Input closely connects, and the output of described geared system 2 is connected with base bearing 3 and drive shaft is held 3 rotations, described masterBearing 3 is connected with cutter head of shield machine by adpting flange 4, is provided with black box 5 on the top of described base bearing 3; DescribedSynchronous frequency conversion motor 1 is with brake, and this synchronous frequency conversion motor 1, geared system 2 and base bearing 3 are connected to form detachableFormula integral structure. Be provided with gearbox 6 and cooling device 7 in synchronous frequency conversion motor 1 and the junction of geared system 2; ItsIn, the output shaft of variable-frequency motor 1 connects gearbox 6 by cooling device 7, the output connection teeth wheel apparatus of gearbox 62 spherical bearing 8.
In the present embodiment, synchronous frequency conversion motor 1 can comprise motor body 1-1 and frequency converter 1-2, at described motor bodyTorque speed sensor 1-3 is installed on the output shaft of 1-1, between frequency converter 1-2 and sensor 1-3, is connected with industrial computer 1-4.Synchronous frequency conversion motor 1 can be provided with 6,7,8,9 or 10 according to the structure of cutter head of shield machine. Described methodBlue 4 can be arranged on base bearing 3 by bolt. Main driving mechanism can also include lubrication assembly. Geared system 2 canTo be formed by single gear or gear train.
The driving principle of synchronous frequency conversion motor:
With reference to Fig. 3, synchronous frequency conversion motor 1 comprises motor body 1-1 and frequency converter 1-2, defeated at described motor body 1-1Torque speed sensor 1-3 is installed on shaft, between frequency converter 1-2 and sensor 1-3, is connected with industrial computer 1-4. By turning roundThe output torque T that square speed probe 1-3 records and rotation speed n are delivered to industrial computer, and (Industrial Control Computer can adopt conventionalIndustrial programmable controlling machine PLC), calculate the power output P of motor, by the rated power of power output P and motorPo is difference computing Δ P=P-Po, then provides control signal u by power deviation Δ P by certain control rate, to turning round of motorSquare and rotating speed are made permanent power adjusting, under the effect of gearbox 6, drive cutterhead by geared system 2; Each frequency converter 1-1Between can carry out electric current and Motor torque by PLC (programmable logic controller (PLC)) and contrast, can prevent like this electricity of motorStream difference is excessive, prevents that motor bearing load imbalance is excessive, near motor safety step operation mutually rated power all the time like this,Thereby reach energy-efficient object.
Operation principle of the present invention:
Below taking six arm cutterheads as example illustrates operation principle of the present invention. Because cutterhead main driving mechanism is positioned at cutterhead and shield machineAnterior shield between, main driving mechanism is connected on the flange of anterior shield pressure-bearing dividing plate, simultaneously by bolt securely as an entiretyThe flange being connected with cutterhead for example, is connected on the flange of cutterhead with many (88) bolts, makes cutterhead clockwise and contraryOn hour hands both direction, within the scope of 0～50Hz, reach moment of torsion in full, make power of motor constant, cutter plate driver is synchronous by 8After synchronous frequency conversion machine operation, geared system 2 starts to rotate, and then drives base bearing to rotate, and connects by bolt and base bearingThe flange connecing is and then rotation also, thereby drives cutterhead rotation. According to the structure spy of the characteristic of six arm cutterheads and synchronous frequency conversion motorPoint is transformed, and diameter increases to 3m by 2.6m, and it is large that the flange being connected with cutterhead also correspondingly becomes, and improved whole cutterheadThe safety coefficient of structure.
The above, the present invention is only taking six arm cutterheads as example, but protection scope of the present invention is not limited to this, and the present invention is alsoCan adapt to by changing the flange being connected with cutterhead the corresponding conversion of six arms and four arms, therefore, any according to of the present inventionTechnical scheme and design thereof are equal to replaces or changes, and all belongs to protection scope of the present invention.
Claims (5)
1. the main driving mechanism of six arm cutterheads for shield machine, comprises cutter head of shield machine and main driving mechanism, it is characterized in that:
1) main driving mechanism comprises some synchronous frequency conversion motors (1), geared system (2) and base bearing (3), the output of described synchronous frequency conversion motor (1) is closely connected with the input of geared system (2), the output of described geared system (2) is connected with base bearing (3) and drive shaft is held (3) rotation, described base bearing (3) is connected with cutter head of shield machine by adpting flange (4), is provided with black box (5) on the top of described base bearing (3);
2) described synchronous frequency conversion motor (1) is with brake, and this synchronous frequency conversion motor (1), geared system (2) and base bearing (3) are connected to form detachable type integral structure; Described synchronous frequency conversion motor (1) comprises motor body (1-1) and frequency converter (1-2), torque speed sensor (1-3) is installed on the output shaft of described motor body (1-1), between frequency converter (1-2) and torque speed sensor (1-3), is connected with industrial computer (1-4).
2. the main driving mechanism of six arm cutterheads for shield machine according to claim 1, is characterized in that: be provided with gearbox (6) and cooling device (7) in described synchronous frequency conversion motor (1) and the junction of geared system (2); Wherein, the output shaft of synchronous frequency conversion motor (1) connects gearbox (6), the spherical bearing (8) of the output connection teeth wheel apparatus (2) of gearbox (6) by cooling device (7).
3. the main driving mechanism of six arm cutterheads for shield machine according to claim 1 and 2, is characterized in that: described synchronous frequency conversion motor (1) is provided with 6-10 platform.
4. the main driving mechanism of six arm cutterheads for shield machine according to claim 1 and 2, is characterized in that: described adpting flange (4) is arranged on base bearing (3) by bolt.
5. the main driving mechanism of six arm cutterheads for shield machine according to claim 1, is characterized in that: described main driving mechanism also includes lubrication assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110278858.0A CN102359380B (en) | 2011-09-20 | 2011-09-20 | The main driving mechanism of six arm cutterheads for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110278858.0A CN102359380B (en) | 2011-09-20 | 2011-09-20 | The main driving mechanism of six arm cutterheads for shield machine |
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| Publication Number | Publication Date |
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| CN102359380A CN102359380A (en) | 2012-02-22 |
| CN102359380B true CN102359380B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110278858.0A Active CN102359380B (en) | 2011-09-20 | 2011-09-20 | The main driving mechanism of six arm cutterheads for shield machine |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664486B (en) * | 2012-05-10 | 2013-12-18 | 北京市市政工程研究院 | Mini-type motor over-sized torque output structure of tunnel construction pre-cutting groove testing machine |
| CN103334766B (en) * | 2013-05-08 | 2016-07-06 | 浙江大学 | A kind of TBM cutter motor inertial flywheel combined driving device |
| CN105317440A (en) * | 2014-07-31 | 2016-02-10 | 天津威镰通力千斤顶有限公司 | Shield tunneling machine head driven by four motors |
| CN104533437B (en) * | 2014-12-11 | 2017-11-07 | 徐工集团凯宫重工南京有限公司 | A kind of shield machine cutter head torque input structure |
| CN106014432B (en) * | 2016-07-11 | 2017-12-05 | 辽宁北铁建工有限责任公司 | Frequency converter parallel connection principal and subordinate cutter drive system of shield machine and the method for controlling cutterhead |
| CN107100634B (en) * | 2017-05-25 | 2020-05-15 | 中铁隧道集团有限公司 | Weak broken country rock district TBM construction equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687564A (en) * | 2005-03-21 | 2005-10-26 | 上海隧道工程股份有限公司 | Dismountable type drive unit of shield cutter head inside machine |
| CN101539024A (en) * | 2009-04-24 | 2009-09-23 | 上海隧道工程股份有限公司 | Integral type shield cutterhead driving device |
| CN101598024A (en) * | 2009-05-20 | 2009-12-09 | 江阴市港东机械有限公司 | Shield cutter-head mechanism of shield tunnel boring machine |
| CN202284474U (en) * | 2011-09-20 | 2012-06-27 | 海瑞克(广州)隧道设备有限公司 | Main driving mechanism of six-arm cutting disk for shield machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002138792A (en) * | 2000-10-31 | 2002-05-17 | Mitsubishi Heavy Ind Ltd | Cutter rotation control device of shield machine |
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2011
- 2011-09-20 CN CN201110278858.0A patent/CN102359380B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1687564A (en) * | 2005-03-21 | 2005-10-26 | 上海隧道工程股份有限公司 | Dismountable type drive unit of shield cutter head inside machine |
| CN101539024A (en) * | 2009-04-24 | 2009-09-23 | 上海隧道工程股份有限公司 | Integral type shield cutterhead driving device |
| CN101598024A (en) * | 2009-05-20 | 2009-12-09 | 江阴市港东机械有限公司 | Shield cutter-head mechanism of shield tunnel boring machine |
| CN202284474U (en) * | 2011-09-20 | 2012-06-27 | 海瑞克(广州)隧道设备有限公司 | Main driving mechanism of six-arm cutting disk for shield machine |
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| CN102359380A (en) | 2012-02-22 |
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